mirror of
https://github.com/neovim/neovim.git
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256 lines
7.3 KiB
VimL
256 lines
7.3 KiB
VimL
function! remote#define#CommandOnHost(host, method, sync, name, opts)
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let prefix = ''
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if has_key(a:opts, 'range')
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if a:opts.range == '' || a:opts.range == '%'
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" -range or -range=%, pass the line range in a list
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let prefix = '<line1>,<line2>'
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elseif matchstr(a:opts.range, '\d') != ''
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" -range=N, pass the count
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let prefix = '<count>'
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endif
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elseif has_key(a:opts, 'count')
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let prefix = '<count>'
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endif
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let forward_args = [prefix.a:name]
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if has_key(a:opts, 'bang')
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call add(forward_args, '<bang>')
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endif
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if has_key(a:opts, 'register')
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call add(forward_args, ' <register>')
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endif
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if has_key(a:opts, 'nargs')
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call add(forward_args, ' <args>')
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endif
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exe s:GetCommandPrefix(a:name, a:opts)
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\ .' call remote#define#CommandBootstrap("'.a:host.'"'
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\ . ', "'.a:method.'"'
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\ . ', '.string(a:sync)
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\ . ', "'.a:name.'"'
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\ . ', '.string(a:opts).''
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\ . ', "'.join(forward_args, '').'"'
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\ . ')'
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endfunction
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function! remote#define#CommandBootstrap(host, method, sync, name, opts, forward)
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let channel = remote#host#Require(a:host)
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if channel
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call remote#define#CommandOnChannel(channel, a:method, a:sync, a:name, a:opts)
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exe a:forward
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else
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exe 'delcommand '.a:name
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echoerr 'Host "'a:host.'" is not available, deleting command "'.a:name.'"'
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endif
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endfunction
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function! remote#define#CommandOnChannel(channel, method, sync, name, opts)
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let rpcargs = [a:channel, '"'.a:method.'"']
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if has_key(a:opts, 'nargs')
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" -nargs, pass arguments in a list
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call add(rpcargs, '[<f-args>]')
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endif
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if has_key(a:opts, 'range')
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if a:opts.range == '' || a:opts.range == '%'
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" -range or -range=%, pass the line range in a list
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call add(rpcargs, '[<line1>, <line2>]')
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elseif matchstr(a:opts.range, '\d') != ''
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" -range=N, pass the count
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call add(rpcargs, '<count>')
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endif
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elseif has_key(a:opts, 'count')
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" count
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call add(rpcargs, '<count>')
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endif
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if has_key(a:opts, 'bang')
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" bang
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call add(rpcargs, '<q-bang> == "!"')
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endif
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if has_key(a:opts, 'register')
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" register
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call add(rpcargs, '<q-reg>')
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endif
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call s:AddEval(rpcargs, a:opts)
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exe s:GetCommandPrefix(a:name, a:opts)
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\ . ' call '.s:GetRpcFunction(a:sync).'('.join(rpcargs, ', ').')'
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endfunction
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function! remote#define#AutocmdOnHost(host, method, sync, name, opts)
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let group = s:GetNextAutocmdGroup()
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let forward = '"doau '.group.' '.a:name.' ".'.'expand("<amatch>")'
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let a:opts.group = group
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let bootstrap_def = s:GetAutocmdPrefix(a:name, a:opts)
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\ .' call remote#define#AutocmdBootstrap("'.a:host.'"'
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\ . ', "'.a:method.'"'
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\ . ', '.string(a:sync)
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\ . ', "'.a:name.'"'
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\ . ', '.string(a:opts).''
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\ . ', "'.escape(forward, '"').'"'
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\ . ')'
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exe bootstrap_def
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endfunction
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function! remote#define#AutocmdBootstrap(host, method, sync, name, opts, forward)
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let channel = remote#host#Require(a:host)
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exe 'autocmd! '.a:opts.group
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if channel
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call remote#define#AutocmdOnChannel(channel, a:method, a:sync, a:name,
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\ a:opts)
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exe eval(a:forward)
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else
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exe 'augroup! '.a:opts.group
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echoerr 'Host "'a:host.'" for "'.a:name.'" autocmd is not available'
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endif
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endfunction
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function! remote#define#AutocmdOnChannel(channel, method, sync, name, opts)
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let rpcargs = [a:channel, '"'.a:method.'"']
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call s:AddEval(rpcargs, a:opts)
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let autocmd_def = s:GetAutocmdPrefix(a:name, a:opts)
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\ . ' call '.s:GetRpcFunction(a:sync).'('.join(rpcargs, ', ').')'
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exe autocmd_def
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endfunction
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function! remote#define#FunctionOnHost(host, method, sync, name, opts)
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let group = s:GetNextAutocmdGroup()
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exe 'autocmd! '.group.' FuncUndefined '.a:name
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\ .' call remote#define#FunctionBootstrap("'.a:host.'"'
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\ . ', "'.a:method.'"'
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\ . ', '.string(a:sync)
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\ . ', "'.a:name.'"'
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\ . ', '.string(a:opts)
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\ . ', "'.group.'"'
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\ . ')'
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endfunction
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function! remote#define#FunctionBootstrap(host, method, sync, name, opts, group)
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let channel = remote#host#Require(a:host)
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exe 'autocmd! '.a:group
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exe 'augroup! '.a:group
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if channel
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call remote#define#FunctionOnChannel(channel, a:method, a:sync, a:name,
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\ a:opts)
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else
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echoerr 'Host "'a:host.'" for "'.a:name.'" function is not available'
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endif
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endfunction
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function! remote#define#FunctionOnChannel(channel, method, sync, name, opts)
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let rpcargs = [a:channel, '"'.a:method.'"', 'a:000']
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if has_key(a:opts, 'range')
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call add(rpcargs, '[a:firstline, a:lastline]')
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endif
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call s:AddEval(rpcargs, a:opts)
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let function_def = s:GetFunctionPrefix(a:name, a:opts)
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\ . 'return '.s:GetRpcFunction(a:sync).'('.join(rpcargs, ', ').')'
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\ . "\nendfunction"
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exe function_def
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endfunction
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function! s:GetRpcFunction(sync)
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if a:sync
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return 'rpcrequest'
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endif
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return 'rpcnotify'
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endfunction
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function! s:GetCommandPrefix(name, opts)
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return 'command!'.s:StringifyOpts(a:opts, ['nargs', 'complete', 'range',
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\ 'count', 'bang', 'bar', 'register']).' '.a:name
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endfunction
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" Each msgpack-rpc autocommand has it's own unique group, which is derived
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" from an autoincrementing gid(group id). This is required for replacing the
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" autocmd implementation with the lazy-load mechanism
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let s:next_gid = 1
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function! s:GetNextAutocmdGroup()
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let gid = s:next_gid
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let s:next_gid += 1
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let group_name = 'RPC_DEFINE_AUTOCMD_GROUP_'.gid
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" Ensure the group is defined
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exe 'augroup '.group_name.' | augroup END'
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return group_name
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endfunction
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function! s:GetAutocmdPrefix(name, opts)
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if has_key(a:opts, 'group')
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let group = a:opts.group
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else
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let group = s:GetNextAutocmdGroup()
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endif
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let rv = ['autocmd!', group, a:name]
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if has_key(a:opts, 'pattern')
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call add(rv, a:opts.pattern)
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else
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call add(rv, '*')
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endif
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if has_key(a:opts, 'nested') && a:opts.nested
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call add(rv, 'nested')
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endif
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return join(rv, ' ')
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endfunction
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function! s:GetFunctionPrefix(name, opts)
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let res = "function! ".a:name."(...)"
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if has_key(a:opts, 'range')
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let res = res." range"
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endif
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return res."\n"
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endfunction
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function! s:StringifyOpts(opts, keys)
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let rv = []
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for key in a:keys
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if has_key(a:opts, key)
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call add(rv, ' -'.key)
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let val = a:opts[key]
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if type(val) != type('') || val != ''
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call add(rv, '='.val)
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endif
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endif
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endfor
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return join(rv, '')
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endfunction
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function! s:AddEval(rpcargs, opts)
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if has_key(a:opts, 'eval')
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if type(a:opts.eval) != type('') || a:opts.eval == ''
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throw "Eval option must be a non-empty string"
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endif
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" evaluate an expression and pass as argument
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call add(a:rpcargs, 'eval("'.escape(a:opts.eval, '"').'")')
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endif
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endfunction
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